Help Center/ Data Encryption Workshop/ API Reference/ APIs/ Key Management APIs/ Key Lifecycle Management/ Modifying a Key Description

Updated on 2025-09-15 GMT+08:00

Modifying a Key Description

Function

This API is used to modify the CMK details.

The details of the following keys cannot be modified:

Service default CMKs that end with /default

Keys that are scheduled to be deleted

Calling Method

For details, see Calling APIs.

URI

POST /v1.0/{project_id}/kms/update-key-description

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
key_id	Yes	String	A 36-byte key ID which matches the regular expression ^[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{12}$, for example, 0d0466b0-e727-4d9c-b35d-f84bb474a37f.
key_description	Yes	String	Key description. It can contain 0 to 255 characters.
sequence	No	String	A 36-byte serial number of a request message, for example, 919c82d4-8046-4722-9094-35c3c6524cff

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
key_info	KeyDescriptionInfo object	Key description.

**Table 5** KeyDescriptionInfo
Parameter	Type	Description
key_id	String	Key ID.
key_description	String	Key description.

Status code: 400

**Table 6** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 7** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Status code: 401

**Table 8** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 9** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Status code: 403

**Table 10** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 11** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Status code: 404

**Table 12** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 13** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Status code: 500

**Table 14** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 15** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Status code: 502

**Table 16** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 17** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Status code: 504

**Table 18** Response body parameters
Parameter	Type	Description
error	Object	Error message

**Table 19** ErrorDetail
Parameter	Type	Description
error_code	String	Error code returned by the error request
error_msg	String	Error information returned by the error request

Example Requests

Change the description of the key whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f to test.

{
  "key_id" : "0d0466b0-e727-4d9c-b35d-f84bb474a37f",
  "key_description" : "test"
}

Example Responses

Status code: 200

Request succeeded.

{
  "key_info" : {
    "key_id" : "bb6a3d22-dc93-47ac-b5bd-88df7ad35f1e",
    "key_description" : "test"
  }
}

Status Codes

Status Code	Description
200	Request succeeded.
400	Invalid request parameters.
401	Username and password are required for the requested page.
403	Authentication failed.
404	The resource does not exist.
500	Internal service error.
502	Failed to complete the request. The server receives an invalid response from the upstream server.
504	Gateway timed out.

Error Codes

See Error Codes.

Parent Topic: Key Lifecycle Management

Previous topic: Modifying a Key Alias

Next topic: DEK Management

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